Office Rivals

Synopsis
You and your co-worker Nanako have always had a bitter rivalry. Finally, on the order of your boss, you two have to cooperate for once. What bottled up feelings will this predicament reveal? Where did it all go wrong between you and her? And how will she eventually help you to reconnect what you've lost in touch with: that there is more to life than just being a productive workaholic?
Slice of Life

Office Rivals is a slice of life visual novel, and was created as a doujin in VN form. It is fairly linear with one true ending but also has some alternate endings. If you're looking for more adventurous stories, it might not be your cup of tea. If you love slice of life though, it's made for you!
Setting and Story
A flawed protagonist: the protagonist is not a perfect ladies' man. Despite being a talented and well-dressed company star, he is a workaholic with insecurities and trust issues.

Grounded side-characters with relatable personalities: not everyone has the perfect life! Overtime, commute issue, work confidence; they're all a part of our daily challenges!

An 'authentically Asian' setting: Heart City is a fictional city that's inspired by real-life places, settings and cultures.

Playtime for steady-paced readers: approximately 5-6 hours.

Characters

Love interest:
Nanako Takagi, 29, is the protagonist's coworker and work rival. Talented and beautiful, she secretly has feelings for him. But what does she see in him? And how did their rivalry start?

Side characters:
Seon: The boss who's strict but also caring.

Gee: Upbeat and easy-going, but nervous about meeting his girlfriend's parents!

Michelle: Composed and dedicated, with an underlying fear of coming out of her shell.

Isamu: Someone from Nanako's past! Smug, rich and arrogant!

Mei and Min: The father-and-daughter duo who run the late night food stall the protagonist likes to visit.

And more side characters in the latter chapters!
Spicy Moments

Erotic scenes such love-making after date, risky public encounters, and naughty talks during a company meeting...

Paizuri, oral sex, nipple play/rub/fuck, lactation, impregnation, exhibitionism, and others!

Pregnancy: The Ultimate Goal?!
Play with fire: early in their relationship, the lovers have protected sex, thus building up the protagonist's desire to creampie Nanako, and soon... maybe they'll play around with some risky kinks?!

Indulge in her pregnant body: pregnant sex, lactation, breastfeeding and multiple creampies!

Note
Please keep in mind that Office Rivals is a slice-of-life visual novel, not fantasy, harem, or other genres.